EFFECT OF HEAT TREATMENT ON WEAR BEHAVIOR OF AlSi10Mg ALLOY FABRICATED BY CASTING

Öz

The ease of processing aluminum due to its mechanical and chemical properties, along with various manufacturing methods, has increased its usage in the industry. This study involves tests conducted on the samples produced from EN AC-43000 (AlSi10Mg) aluminum casting material, which finds applications in machine manufacturing. The tests aimed to determine the mass loss and friction coefficients of the test specimens. Wear experiments were carried out according to ASTM G99 using a specialized test machine. The abrasive disc used in the wear machine has a surface hardness of 62 HRC and a surface roughness value (Ra) of 1,6 μm, and it is made of 1,2379-X155CrVMo12-1 cold work tool steel. Adhesive wear tests were conducted on the test specimens under loads of 14,7, 24,5, and 34,3 N. When the mass losses of the samples were examined, the wear rate decreased as the aging temperature increased up to 200 °C. On the other hand, it was observed that the wear rate increased at 220 °C, unlike aging at lower temperatures.

Anahtar Kelimeler

• Aging temperature
• wear
• adhesive wear
• friction coefficient

DÖKÜM İLE ÜRETİLEN AlSi10Mg ALAŞIMININ AŞINMA DAVRANIŞINA ISIL İŞLEMİN ETKİSİ

Öz

Alüminyumun mekanik ve kimyasal özelliklerinin yanısıra farklı imalat yöntemleri ile işlenebilirliğinin kolaylığı endüstride kullanımını arttırmıştır. Çalışmada makine imalatında da kullanım alanı bulan EN AC-43000 (AlSi10Mg) alüminyum döküm malzemeden üretilen numuneler ile yapılan testler ile test numunelerinin kütle kaybı ve sürtünme katsayıları saptanmıştır. Araştırmada aşınma deneyleri; ASTM G99’a göre imal edilmiş özel bir test makinesi ile gerçekleştirilmiştir. Aşınma makinesinde kullanılan aşındırıcı disk 62 HRC yüzey sertliği ve 1,6 μm yüzey pürüzlülük değerine (Ra) sahip; 1,2379-X155CrVMo12-1 soğuk iş takımı çeliğinden üretilmiştir. Çalışmada kullanılan test numunelerinin 14,7; 24,5 ve 34,3 N yük altında adhezif aşınma testleri gerçekleştirilmiştir. Numunelerin kütle kayıpları incelendiğinde, yaşlandırma sıcaklığı 200 °C'ye çıktıkça aşınma oranının azaldığı görüldü. Öte yandan, daha düşük sıcaklıklardaki yaşlandırmanın aksine, 220 C'de aşınma oranının arttığı gözlendi.

Anahtar Kelimeler

• Yaşlandırma sıcaklığı
• aşınma
• adhezif aşınma
• sürtünme katsayısı

Kaynakça

1. Beder, M., Akçay, S. B., Varol, T., & Çuvalcı, H. (2024). The Effect of Heat Treatment on the Mechanical Properties and Oxidation Resistance of AlSi10Mg Alloy. Arabian Journal for Science and Engineering, 1-12.
2. Can, K., Dalmış, F., & Dalmış, İ. (2022). Design and Implementation of PLC Based Special Purpose Machine for Surface Coating. Avrupa Bilim ve Teknoloji Dergisi, (33), 338-343.
3. Chang, Z., Liu, L., Sui, Z., Yan, X., Li, Y., Zhang, Y., ... & Yang, M. (2024). Effect of Aging Temperature on Pitting Corrosion of AA6063 Aluminum Alloy. Metals and Materials International, 30(6), 1556-1570.
4. Chawla, N., Chawla, K.K. (2013). Wear and Corrosion. In: Metal Matrix Composites. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9548-2_10
5. de Moura, D. A., de Gouveia, G. L., Gomes, L. F., & Spinelli, J. E. (2022). Understanding the effect of Ni content on microstructures and tensile properties of AlSi10Mg alloy samples under a variety of solidification rates. Journal of Alloys and Compounds, 924, 166496.
6. Dwivedi, D. K. (2006). Wear behaviour of cast hypereutectic aluminium silicon alloys. Materials & design, 27(7), 610-616.
7. Gabor, R., Prymus, T., Cvrček, L., Nehasil, V., Hlinka, J., Buřil, M., ... & Seidlerová, J. (2022). Final surface modification for better wear resistance of ceramic coating on cast AlSi10Mg alloy. Ceramics International, 48(24), 37433-37447.
8. Gite, R. E., & Wakchaure, V. D. (2023). A review on process parameters, microstructure and mechanical properties of additively manufactured AlSi10Mg alloy. Materials Today: Proceedings, 72, 966-986.

9. Gong, S., Takata, N., Kobashi, M., & Shin, S. E. (2023). Wear properties of aluminum alloys fabricated by laser powder bed fusion. Tribology International, 187, 108769.
10. Jiang, B., Jiang, B., Yang, W., Wang, Y., Xu, H., Hu, M., & Guo, Y. (2024). Efficient modification eutectic Si of Al-10Si alloy with Mg-Gd master alloy addition. Materials Letters, 136071.
11. Kan, W. H., Huang, S., Man, Z., Yang, L., Huang, A., Chang, L., ... & Proust, G. (2021). Effect of T6 treatment on additively-manufactured AlSi10Mg sliding against ceramic and steel. Wear, 482, 203961.
12. Liu, C., Wang, Q., Cao, X., Cha, L., Ye, R., & Ramachandran, C. S. (2021). Significance of plasma electrolytic oxidation treatment on corrosion and sliding wear performances of selective laser melted AlSi10Mg alloy. Materials Characterization, 181, 111479.
13. Maji, P., Ghosh, S. K., Nath, R. K., & Karmakar, R. (2020). Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 42, 1-24.
14. Nirish, M., & Rajendra, R. (2022). Optimization Process Parameter on Wear Characterization of Al6061 and AlSi10Mg Alloy Manufactured by Selective Laser Melting. International Journal of 3D Printing and Additive Manufacturing, 2(1), 1-10.
15. Prasat, V., Subramanian, R., Radhika, N., & Anandavel, B. (2011). Dry sliding wear and friction studies on AlSi 10 Mg-fly ash-graphite hybrid metal matrix composites using Taguchi method. Tribology- Materials, Surfaces & Interfaces, 5(2), 72-81.
16. Ren, J., Hong, Z., Zhou, Q., Xu, X., & Yin, S. (2023). Effect of Aging Treatment Temperature on Microstructure and Properties of Al-Si-Mg Cast Aluminum Alloy. Journal of Materials Engineering and Performance, 1-9.
17. Senthilkumar, M., Saravanan, S. D., & Shankar, S. (2015). Dry sliding wear and friction behavior of aluminum–rice husk ash composite using Taguchi’s technique. Journal of composite materials, 49(18), 2241-2250.
18. Shakil, S. I., Hadadzadeh, A., Pirgazi, H., Mohammadi, M., & Haghshenas, M. (2021). Indentation-derived creep response of cast and laser powder bed fused AlSi10Mg alloy: Air temperature. Micron, 150, 103145.
19. Shankar, S., & Elango, S. (2017). Dry sliding wear behavior of palmyra shell ash–reinforced aluminum matrix (AlSi10Mg) composites. Tribology Transactions, 60(3), 469-478.
20. Soydaş, S. (2006). Üniversal aşınma test cihazı tasarımı ve imalatı [Master's thesis]. Kocaeli Üniversitesi Fen Bilimleri Enstitüsü, Kocaeli.
21. Straffelini, G. (2015). Wear Mechanisms. In: Friction and Wear. Springer Tracts in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-05894-8_4
22. Wahlström, J., Lyu, Y., Matjeka, V., & Söderberg, A. (2017). A pin-on-disc tribometer study of disc brake contact pairs with respect to wear and airborne particle emissions. Wear, 384, 124-130.
23. Yan, Q., Song, B., & Shi, Y. (2020). Comparative study of performance comparison of AlSi10Mg alloy prepared by selective laser melting and casting. Journal of Materials Science & Technology, 41, 199-208.
24. Zhang, P., Liu, J., Gao, Y., Liu, Z., & Mai, Q. (2023). Effect of heat treatment process on the micro machinability of 7075 aluminum alloy. Vacuum, 207, 111574.